Vulnerability Name:

CVE-2018-8291 (CCN-145378)

Assigned:2018-07-10
Published:2018-07-10
Updated:2020-08-24
Summary:A remote code execution vulnerability exists in the way the scripting engine handles objects in memory in Microsoft browsers, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore, Internet Explorer 11, Microsoft Edge. This CVE ID is unique from CVE-2018-8242, CVE-2018-8283, CVE-2018-8287, CVE-2018-8288, CVE-2018-8296, CVE-2018-8298.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:7.6 High (CVSS v2 Vector: AV:N/AC:H/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
7.1 High (CCN CVSS v2 Vector: AV:N/AC:H/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-843
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2018-8291

Source: BID
Type: Third Party Advisory, VDB Entry
104637

Source: CCN
Type: BID-104637
Microsoft Internet Explorer and Edge CVE-2018-8291 Remote Memory Corruption Vulnerability

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1041256

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1041258

Source: XF
Type: UNKNOWN
ms-browsers-cve20188291-code-exec(145378)

Source: CCN
Type: Packet Storm Security [08-17-2018]
Microsoft Edge Chakra DictionaryPropertyDescriptor::CopyFrom Failed Copy

Source: CCN
Type: Microsoft Security TechCenter - July 2018
Scripting Engine Memory Corruption Vulnerability

Source: CONFIRM
Type: Patch, Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8291

Source: EXPLOIT-DB
Type: EXPLOIT
Offensive Security Exploit Database [08-17-2018]

Source: EXPLOIT-DB
Type: Exploit, Third Party Advisory, VDB Entry
45215

Vulnerable Configuration:Configuration 1:
  • cpe:/a:microsoft:internet_explorer:11:*:*:*:*:*:*:*
  • AND
  • cpe:/o:microsoft:windows_10:-:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_10:1607:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_10:1703:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_10:1709:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_10:1803:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_7:*:sp1:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_8.1:*:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_rt_8.1:*:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/a:microsoft:edge:-:*:*:*:*:*:*:*
  • AND
  • cpe:/o:microsoft:windows_10:-:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_10:1607:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_10:1703:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_10:1709:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_10:1803:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/a:microsoft:chakracore:*:*:*:*:*:*:*:* (Version < 1.10.1)

    • Configuration CCN 1:
  • cpe:/a:microsoft:edge:*:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:chakracore:*:*:*:*:*:*:*:*
  • AND
  • cpe:/o:microsoft:windows_7:-:sp1:-:*:-:-:x32:*
  • OR cpe:/o:microsoft:windows_7:*:sp1:x64:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
  • OR cpe:/o:microsoft:windows_8.1:-:-:-:*:-:-:x32:*
  • OR cpe:/o:microsoft:windows_8.1:-:*:*:*:*:*:x64:*
  • OR cpe:/o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_rt_8.1:*:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_10:-:*:*:*:*:*:x32:*
  • OR cpe:/o:microsoft:windows_10_1507:-:*:*:*:*:*:x64:*
  • OR cpe:/o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    microsoft internet explorer 11
    microsoft windows 10 -
    microsoft windows 10 1607
    microsoft windows 10 1703
    microsoft windows 10 1709
    microsoft windows 10 1803
    microsoft windows 7 * sp1
    microsoft windows 8.1 *
    microsoft windows rt 8.1 *
    microsoft windows server 2008 r2 sp1
    microsoft windows server 2012 r2
    microsoft windows server 2016 -
    microsoft edge -
    microsoft windows 10 -
    microsoft windows 10 1607
    microsoft windows 10 1703
    microsoft windows 10 1709
    microsoft windows 10 1803
    microsoft windows server 2016 -
    microsoft chakracore *
    microsoft edge *
    microsoft chakracore *
    microsoft windows 7 - sp1
    microsoft windows 7 * sp1
    microsoft windows server 2008 r2 sp1
    microsoft windows 8.1 - -
    microsoft windows 8.1 -
    microsoft windows server 2012 r2
    microsoft windows rt 8.1 *
    microsoft windows 10 -
    microsoft windows 10 -
    microsoft windows server 2016